I saw another member post a circa 1923 watch and thought I would share mine. I don't come across these 10 sided cases very often, you almost always find them in octagon cases, and I have yet to see more than a handful of solid gold cased 10 sided watches, this one is 14k.

The movement runs like a top and keeps accurate time down to the minute over days. The dial is engraved silver and also a great feature.